{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["concept or principle", "engineering feature", "application", "machanical property", "biomedical", "material"], "input": "The rapid prototyping has been developed from the 1980s to produce models and prototypes until the technologies evolution today ."}
{"concept or principle": ["prototypes", "technologies evolution"], "engineering feature": [], "application": [], "machanical property": [], "biomedical": [], "material": []}